A few questions
Mon, 2010-01-25 10:55
Either there isn't much documentation, or I am not finding it.... So a few questions about the server.
We are looking at using the server inside EC2. We are primarily interested in the product for replication. I brought up two small instances in AWS. The management consoles work fine (at least viewing).
1) How do I set up replication? I am interested in full fail-over between the two instances, so that if I store object A in the cache, it is replicated to both.
Can I contact the replica set using one name/IP somehow? Or do I need to configure our clients with multiple names somehow? We are using rails in our clients.
2) How can I log into these boxes? AWS claims it set up my keypair that we use with our other servers, but I can't log in using the ssh key pair. Something different there?
3) Have you considered better integration with rightscale? We use rightscale heavily and love it.
Answers to your questions below:
>1) How do I set up replication? I am interested in full fail-over between the two instances, so that if I store >object A in the cache, it is replicated to both.
>Can I contact the replica set using one name/IP somehow? Or do I need to configure our clients with multiple >names somehow? We are using rails in our clients.
Replicaiton is a feature on our roadmap and planned for a future release - date TBD.
For our inital release we took the approach that reliability is slightly less of an issue within the cloud than it is within a datacenter where you have finite and potentially faulty resources. We focused on two key areas: efficiency and reporting. Our memcached server is much more efficient at handling memory than the open source version because we don't use the heavily fragmented slab allocator. Also, our instance allows you to make use of the block storage that Amazon provides, drastically lowering your cost per gigabyte.
The next release of our software on AWS - EC2 will enable you to leverage the dynamic nature of the cloud. You'll be able to provide your clients with a single list of IP addressess and grow or shrink the memcache memory space without having your clients rehash.
>2) How can I log into these boxes? AWS claims it set up my keypair that we use with our other servers, but I >can't log in using the ssh key pair. Something different there?
With this release the only way to access the instance is via the Web GUI. We've locked down shell access to ensure our ability to support the product. We'll add your request for shell access into our product planning cycle.
>3) Have you considered better integration with rightscale? We use rightscale heavily and love it.
Yes, we are planning intergration with RightScale. Release and timing TBD.